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James Bay - southern half

Warnings

Forecast

Marine Forecast

Issued 05:00 PM CST 07 December 2025

Tonight and Monday.

Gale warning in effect.

Wind west 25 knots increasing to west 35 early Monday morning then diminishing to west 30 late Monday morning. Wind diminishing to west 20 Monday evening.

Flurries ending Monday afternoon.

Freezing spray warning in effect.

Outside the ice edge moderate freezing spray except severe Monday morning.

Temperatures near minus 10.

Waves

Issued 05:00 PM CST 07 December 2025
Tonight and Monday. Outside the ice edge seas 1 metre building to 2 early Monday morning then subsiding to 1 Monday afternoon.

Extended Forecast

Issued 05:00 PM CST 07 December 2025
Tuesday Wind west 20 knots diminishing to light in the morning then increasing to west 25 late in the day.
Wednesday Wind west 25 knots veering to north 25.
Thursday Wind light increasing to northwest 20 knots.

Ice Forecast

Issued 11:00 AM EST 7 December 2025 Today Tonight and Monday 4 tenths grey ice including 1 tenth grey-white ice except 9 tenths grey ice including 1 tenth grey-white ice in the western section. Consolidated grey ice along parts of the coasts. 

[ Canadian Ice Service ]

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Map of Hudson - Hudson Bay marine weather areas Akulivik Airport Coral Harbour Airport Eastmain Airport Inukjuak Airport La Grande Rivière Airport Moosonee Airport Peawanuck Airport Fort Severn Airport Waskaganish Airport Churchill Airport Wemindji Airport Baker Lake Airport Rankin Inlet Airport Sanikiluaq Airport Whale Cove Airport Kinngait (Cape Dorset Airport) Iqaluit Airport Wager Bay Kimmirut Airport Cape Kakkiviak Tasiujaq Airport Salluit Airport Quaqtaq Airport Kuujjuaq Airport Kangiqsualujjuaq Airport Kangirsuk Airport Kangiqsujuaq Airport Kuujjuarapik Airport Puvirnituq Airport Aupaluk Airport Chesterfield Inlet Airport Ivujivik Airport Umiujaq Airport Arviat Airport
Legend:
buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Issued 11:00 AM EST 7 December 2025 Today Tonight and Monday

Ice Edge

Ice edge estimated from Quebec near 6025N 6454W to 5915N 6734W to
Baffin Island near 6152N 6608W. Sea ice east then west of the ice
edge.

Ice Coverage

4 tenths grey ice including 1 tenth grey-white ice except 9 tenths
grey ice including 1 tenth grey-white ice in the western section.
Consolidated grey ice along parts of the coasts.

Warnings

Warnings (In effect)

Gale warning in effect

James Bay - southern half

Issued 5:00 PM CST 07 December 2025

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Freezing spray warning in effect

James Bay - southern half

Issued 5:00 PM CST 07 December 2025

Moderate or severe freezing spray is occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 4:45 PM EST 7 December 2025 Tonight and Monday At 0000 UTC Monday merging low 995 mb located at 57N 77W.
At 0000 UTC Monday trough located from 55N 53W to 59N 60W then to
63N 68W.
By 0000 UTC Tuesday low 982 mb located at 60N 69W.

At 0000 UTC Tuesday quasi-stationary ridge located from 72N 75W
to 66N 63W.

Hudson - Hudson Bay Area

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